Ices, or better, eating water ice (6)
I believe the answer is:
sorbet
'water ice' is the definition.
(I've seen this before)
'ices or better eating' is the wordplay.
'eating' indicates a hidden word.
'SORBET' is hidden within 'ices or better'.
(Other definitions for sorbet that I've seen before include "A flavoured water-ice served between courses" , "Frozen dessert" , "Strobe (anag.)" , "Granita-like dessert" , "Sweet" .)